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Liquid phase methanol process development unit: installation, operation, and support studies. Technical progress report No. 9, 1 October-31 December 1983

Technical Report ·
OSTI ID:5403329
At Chem Systems, the Fairfield Lab PDU completed a 510-hour run in the ebullated mode with catalyst candidate EPJ-25L, the alternate catalyst candidate for LaPorte. Balanced gas feed was run for the first 60 hours and CO-rich gas for the remainder of the test. Pressure and temperature were fixed at 765 psia and 482/sup 0/F. Gas velocity was fixed at 0.10 ft/sec over the first 250 hours and then varied, including a period at 0.17 ft/sec, the LaPorte gas velocity. Catalyst attrition and methanol productivity were similar to candidate EPJ-19LR, however, bed density variations developed after 150 hours and worsened through the run. EPJ-19LR has been selected as the LaPorte catalyst. The Lab PDU also operated in the slurry mode for the second time, a 265-hour run using a nominal 17 wt% of catalyst F50/4E75-01. The slurry loading was increased to about 27 wt % (about 18 wt % in run No. 1). Balanced and CO-rich gas were run at 515 to 1015 psia, 437 to 482/sup 0/F, and 0.04 to 0.21 ft/sec superficial gas velocity. Unlike the first run, catalyst plugging and coating problems were encountered and methanol productivity was lower than expected. In the laboratory bench-scale effort at Fairfield, two of the APCI developmental catalyst powders were screened in the 2-liter autoclave. The Cu/Zn/Al/sub 2/O/sub 3/ preparation was less active than the commercial reference powders but the Cu/Zn/Boron preparation exhibited comparable productivity. In the Allentown laboratories, two 1400-hour gas-phase activity maintenance runs were accomplished with CO-rich gas at 765 psia and 437 to 482/sup 0/F.
Research Organization:
Air Products and Chemicals, Inc., Allentown, PA (USA); Chem Systems, Inc., Tarrytown, NY (USA)
DOE Contract Number:
AC22-81PC30019
OSTI ID:
5403329
Report Number(s):
DOE/PC/30019-T10; ON: DE84006291
Country of Publication:
United States
Language:
English